--- a/layout/style/nsCSSPropList.h
+++ b/layout/style/nsCSSPropList.h
@@ -1788,17 +1788,17 @@ CSS_PROP_POSITION(
     CSS_PROPERTY_PARSE_VALUE,
     "",
     VARIANT_HK,
     kFlexWrapKTable,
     CSS_PROP_NO_OFFSET,
     eStyleAnimType_Discrete)
 CSS_PROP_DISPLAY(
     float,
-    float,
+    float_,
     CSS_PROP_PUBLIC_OR_PRIVATE(CssFloat, Float),
     CSS_PROPERTY_PARSE_VALUE |
         CSS_PROPERTY_APPLIES_TO_FIRST_LETTER,
     "",
     VARIANT_HK,
     kFloatKTable,
     CSS_PROP_NO_OFFSET,
     eStyleAnimType_None)

--- a/layout/style/nsComputedDOMStylePropertyList.h
+++ b/layout/style/nsComputedDOMStylePropertyList.h
@@ -121,17 +121,17 @@ COMPUTED_STYLE_PROP(cursor,             
 COMPUTED_STYLE_PROP(direction,                     Direction)
 COMPUTED_STYLE_PROP(display,                       Display)
 COMPUTED_STYLE_PROP(empty_cells,                   EmptyCells)
 COMPUTED_STYLE_PROP(flex_basis,                    FlexBasis)
 COMPUTED_STYLE_PROP(flex_direction,                FlexDirection)
 COMPUTED_STYLE_PROP(flex_grow,                     FlexGrow)
 COMPUTED_STYLE_PROP(flex_shrink,                   FlexShrink)
 COMPUTED_STYLE_PROP(flex_wrap,                     FlexWrap)
-COMPUTED_STYLE_PROP(float,                         Float)
+COMPUTED_STYLE_PROP(float_,                        Float)
 //// COMPUTED_STYLE_PROP(font,                     Font)
 COMPUTED_STYLE_PROP(font_family,                   FontFamily)
 COMPUTED_STYLE_PROP(font_feature_settings,         FontFeatureSettings)
 COMPUTED_STYLE_PROP(font_kerning,                  FontKerning)
 COMPUTED_STYLE_PROP(font_language_override,        FontLanguageOverride)
 COMPUTED_STYLE_PROP(font_size,                     FontSize)
 COMPUTED_STYLE_PROP(font_size_adjust,              FontSizeAdjust)
 COMPUTED_STYLE_PROP(font_stretch,                  FontStretch)